docs: def build_youngs_coppersmith_mfd(mfd):
      """
      Parses the Youngs & Coppersmith MFD as a node. Note that the MFD does
      not hold the total moment rate, but only the characteristic rate. Therefore
      the node is written to the characteristic rate version regardless of
      whether or not it was originally created from total moment rate
  
      :param mfd:
          MFD as instance of :class:
          `openquake.hazardlib.mfd.youngs_coppersmith_1985.
          YoungsCoppersmith1985MFD`
      :returns:
          Instance of :class:`openquake.baselib.node.Node`
      """
      return Node("YoungsCoppersmithMFD",
                  {"minMag": mfd.min_mag, "bValue": mfd.b_val,
                   "characteristicMag": mfd.char_mag,
                   "characteristicRate": mfd.char_rate,
                   "binWidth": mfd.bin_width})